Improvement in coal-oil lamps



i UNITED STATns `PATENT Y OFFICE.'

HENRY BH'N, on nnwfYonK,` N. Y."

.l IMPRQVEMENT IN COAL-ou. LAMPS.

Specification formingpart ofvLetters Patent No. 35,579, dated J une 17', I1862.

. y l `To @ZL whom it may concern:

i Be it known that I,"HENRY BEEN, of New York, in the county and State of New York,

i have invented a new and Improved Goal-0il Lamp; and I do hereby declare that the following is a full andeizact description of the same,

reference beinghad to the accompanying draw'- ings, and to the `letters of reference marked thereon. i i I The nature of` my invention consists in the .construction of a burner provided with a gaschainber in which the ,gases are collected and conducted 'away from tbe wick, to allow the i illuminating -material onlyfto rise to the end `of the wick, so as to burn without smoke or offensive odor, and without the inconvenience cfa chimney. y

Figure I- represents an outside view of the y f inishedlamp-burner. Fig. II isa vertical sectionvot'the burner,.and Fig. HI isa cross-sec- 4 tion of the same.

The block a is screwed firmly into the top of L the lamp', and has a wick-tube, l), tirmly'fastcned to it. Near the top of this wick-tube b1 a gas-chamber, cl, is attached, the upper end of which is shaped so as to form a wick-tube, to, receive a flat wick. lOne side of this wiekq tube n is left free on its edges and not fastened -to the other side, by .which arrangement sufficient spring-andelasticity is obtained to allow the wick to be easily slipped up or downwhen required. y A wedge,p, isrnadeto act against this loosesde ofthe wicktube n, whereby said aside will be pressed against the wick to hold` the same sufficiently tight to retain its position. Instead of a wedge, as above described, aspring orsprings maybe used as an equivalent for said wedge. Y

. Near the lower part of the" gaschainber d openings 'u c are made, forming communications between said chamber rl and small tubes or pipes m m, closed at the bottom and terminating on a level` with and close to the topof` `the wick-tube n.

The wick, passing through'the wiekftubes -n and b, passes free or without any close surrounding tube through the gas-chamber d.

When the wick is lighted, the heat of the liameai'ects the ends of the tubes or pipes m i m and produces a current by which any generated vapors or gases are drawn through lsaid pipes away from the gas-chamber d, which will be ignitedand consumed at the mouth of said tubes, allowing thereby the illuminating ma- 'terial of the coal-oil to bui-nat the end ofv the wick without any smoke and without the nei cessity and inconvenience of a chimney.

Thedrawingoff of the from the gaschainber d through the pipes m 1n, as above described, prevents the lower wick-tube, Vb,

" from becoming heated and conducting 'caloric down into the oil, and thus increasing the evaporation.

.what i @mim fis-my invention, and desire to' secure by Letters Patent, is-

l. The arrangement of thegas-chamber dA 

